File:Municipal Art Society building.jpg|thumb|right|457 Madison Avenue.
The '''Municipal Art Society of New York''', founded in 1893, is a non-profit membership organization that fights for intelligent urban planning
and Historic preservation|preservation
in New York City
On January 20, 2010, MAS relocated from its longtime home in the historic Villard Houses
on 457 Madison Avenue to the equally famed Steinway Hall
on 57th Street (Manhattan)|West 57th Street
(across the street and east of Carnegie Hall
). The MAS website currently lists their address as 488 Madison Avenue, Suite 1900.